11313112320 has 144 divisors (see below), whose sum is σ = 40145958720. Its totient is φ = 3016820736.

The previous prime is 11313112271. The next prime is 11313112333. The reversal of 11313112320 is 2321131311.

11313112320 is a `hidden beast` number, since 1 + 1 + 31 + 311 + 2 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11313112293 and 11313112302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129114 + ... + 198233.

It is an arithmetic number, because the mean of its divisors is an integer number (278791380).

Almost surely, 2^11313112320 is an apocalyptic number.

11313112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313112320 is an abundant number, since it is smaller than the sum of its proper divisors (28832846400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11313112320 is an equidigital number, since it uses as much as digits as its factorization.

11313112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327377 (or 327357 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11313112320 its reverse (2321131311), we get a palindrome (13634243631).

The spelling of 11313112320 in words is "eleven billion, three hundred thirteen million, one hundred twelve thousand, three hundred twenty".